Underdogs : crime classic

"What do you think of it, Bella?" asked my mistress with a thoughtful smile. "It's from a crook," I said. "Of course. One thoroughly familiar with the seamy side of life, and with 'bulls,' poor soul. That's what appeals to me. We have never had a crook for a client." "You don't mean to take it seriously?" I said. "It moves me," she said simply. "It rings like a genuine cry from the heart." It had moved me too, when she read it, but I was filled with anxiety for my generous mistress, who offered such a shining mark for envy and hatred to shoot at. "It may be a trap ...